Private company
Vamvakas Family Trust
Canadian company, incorporated in Ontario. Summary from the record
Last updated Oct 21, 2026.
Overview
- HeadquartersA61
Corporate structure
Vamvakas Family Trust sits at the top of its group. 2 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.
- Vamvakas Family Trust A6
- Greenbrook TMS Inc. Stake ยท Toronto, Canada
Built from major holders from Schedules 13D and 13G; stakes of 5% or more it reported on Schedules 13D and 13G (1 companies). Each entity in the chart links to its source.
Stakes it holds
Vamvakas Family Trust has told the SEC it owns more than 5% of 1 company, latest first (Schedules 13D and 13G).
- Greenbrook TMS Inc.SC 13D/A Feb 17, 2022 to Aug 30, 20232
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1
- 2